Coating method of automobile hub cover

Abstract

The invention discloses a membrane-plating method for a hub cover of a vehicle which includes the steps of pre-processing, bottom coating through light curing, chromeplating through ion bombardment, surface coating through light curing, etc. The invention adopts a dry plating to replace the traditional wet electric plating and adopts an aluminum layer to replace the traditional metal coat of Ni-Cu-Cr. The dry plating method does not contain poison matters, does not have the problem of three wastes, does not need three-waste processing, has a simple technique process and has no pollution to the environment. The working condition of a worker is good; the effect to the body health is small. The noble metals like Cu, Ni and Cr are not needed to be used; only less aluminum is used, thus greatly reducing the cost. The technique is simple; the working procedures are less; the production cost is low. The power consumption is about one fifths to one sevenths of the electric plating; the water consumption is about one tens to one twentieths of the electric plating. The integral production cost is about one seconds of the electric plating. The method of the invention has a high economic benefit; besides, nano-ceramics particles are added in the surface coating material of light curing which improves the techniques of dispersing and mixing as well as remarkably improves the surface wear-resistance.

Description

【Technical field】 [0001] The invention relates to the field of material surface treatment, in particular to a method for coating a hub cover of an automobile. 【Background technique】 [0002] The material of the automobile hub cap is ABS plastic, in order to improve its surface appearance quality and performance, it adopts electroplating process for surface treatment. [0003] The surface electroplating treatment process of the automobile hub cover is: degreasing→roughening→reduction→activation→electroless nickel plating→electroplating coke copper→electroplating acid copper→electroplating semi-bright nickel→electrochrome plating. After the surface of ABS plastic is treated by electroplating, it can obtain high surface quality and good performance. [0004] However, there are many insurmountable defects in this surface electroplating process: [0005] 1. The electroplating waste liquid contains toxic metals and needs to be treated with three wastes. The treatment process is ...

AI Technical Summary

Problems solved by technology

[0005] 1. The electroplating waste liquid contains toxic metals and needs to be treated with three wastes. The treatment process is complicated, the treatment cost is high, and the environmental pollution cannot be completely eliminated;

[0006] 2. It needs to consume a lot of precious metals such as copper, nickel, chromium, etc., and the cost is high;

[0007] 3. The process of plastic electroplating is complex, with many processes and high production costs;

[0008] 4. Large electricity consumption, large water consumption, and high production costs;

[0009] 5. The working conditions of the plastic electroplating process are poor, which has a certain impact on the health of workers

[0010] Therefore, the electroplating process of ABS plastic surface treatment can no longer meet the needs of factors such as environment and cost, and it is urgent to develop a coating method that is environmentally friendly, simple in process, and low in cost.

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